Since its inception, the notion of thin position has played an important role in low-dimensional topology. Thin position for knots in the 3-sphere was first introduced by David Gabai in order to prove the Property R Conjecture. In addition, this theory factored into Cameron Gordon and John Luecke's proof of the knot complement problem and revolutionized the study of Heegaard splittings upon its adaptation by Martin Scharlemann and Abigail Thompson. Let h be a Morse function from the 3-sphere to the real numbers with two critical points. Loosely, thin position of a knot K in the 3-sphere is a particular embedding of K which minimizes the total number of intersections with a maximal collection of regular level sets, where this number of intersections is called the width of the knot. Although not immediately obvious, it has been demonstrated that there is a close relationship between a thin position of a knot K and essential meridional planar surfaces in its exterior E(K). In this thesis, we study the nature of thin position under knot companionship; namely, for several families of knots we establish a lower bound for the width of a satellite knot based on the width of its companion and the wrapping or winding number of its pattern. For one such class of knots, cable knots, in addition to finding thin position for these knots, we establish a criterion under which non-minimal bridge positions of cable knots are stabilized. Finally, we exhibit an embedding of the unknot whose width must be increased before it can be simplified to thin position.

L’objectif général de la thèse était d’étudier le rôle des déterminants sociaux dans l’asthme avec un intérêt particulier pour des aspects méthodologiques de caractérisation du contexte social de résidence.La première partie de la thèse visait à étudier l’hypothèse d’une association entre le niveau socioéconomique (NSE) et la pollution de l’air qui est un facteur de risque important de l’asthme. Nous avons étudié spécifiquement l’association entre le NSE évalué à un niveau individuel (niveau d’études et catégorie socioprofessionnelle) et contextuel (taux de chômage du quartier de résidence) en lien avec l’exposition au dioxyde d’azote (NO2), un marqueur du trafic routier, dans 16 villes d’Europe occidentale (n=5692, 3 cohortes). Dans les analyses stratifiées par ville, nous avons observé que le NSE individuel n’était généralement pas associé au NO2, alors que l’indicateur contextuel était associé positivement et significativement au NO2 dans la majorité des villes.La deuxième partie de la thèse visait à mieux comprendre l’association entre le NSE et le contrôle de l’asthme, objectif majeur de la prise en charge thérapeutique. Ce travail a d’abord porté sur des aspects méthodologiques d’évaluation du contexte social de résidence dans la cohorte E3N (Etude Epidémiologique auprès des femmes de la Mutuelle Générale de l’Education Nationale). La comparaison de trois indices de désavantage (n=63888) a mis en évidence l’intérêt de l’indice FDep (French Deprivation Index) pour caractériser le contexte de résidence de cette cohorte spécifique de femmes âgées avec un NSE relativement élevé comparé à celles de la population générale française. Ce travail a ensuite porté sur l’étude de l’association entre le NSE, individuel et contextuel, et le contrôle de l’asthme dans l’étude Asthma-E3N, une étude cas-témoin sur la santé respiratoire, nichée dans la cohorte E3N. Parmi les 2258 femmes avec un asthme actuel, les femmes avec un niveau d’études moyen (OR= 1.2 (1.0 ; 1.6)) ou bas (1.9 (1.4 ; 2.6)) avaient significativement un moins bon contrôle de leur asthme que celles avec un niveau d’études élevé (≥Bac+3). Les femmes qui résidaient dans les quartiers les plus désavantagés avaient plus fréquemment un asthme non contrôlé, quel que soit leur niveau d’études.Ces résultats montrent l’importance de prendre en compte le niveau socioéconomique au niveau individuel et contextuel dans l’étude des facteurs de risque de l’asthme. / The general aim of the thesis was to study the role of social determinants in asthma with a particular focus on methodological aspects to characterize neighborhood social context.The first part of the thesis aimed to investigate the hypothesis of a differential exposure to air pollution, an important risk factor for asthma. Specifically, we studied the association between socioeconomic position (SEP) assessed at individual-level (educational level and occupational status) and neighborhood-level (unemployment rate) and exposure to nitrogen dioxide (NO2), a marker of traffic exhaust, in 16 western European cities. In stratified analyses, including 5692 participants from three European cohorts, association between individual SEP and NO2 were generally weak and inconsistent in direction. The neighborhood unemployment rate was positively and significantly associated with NO2 in most of the cities studied.The second part of the thesis aimed to better understand the association between socioeconomic position and asthma control, the main target of asthma management. We first focused on methodological aspects to characterize neighborhood social context in the E3N cohort. We compared three indices of deprivation and showed that the French Deprivation Index was the most appropriate to measure neighborhood social context in this specific cohort composed of elderly women with higher socioeconomic profile than the elderly women in the general French population. We then investigated the association between SEP, at individual- and area-level, and asthma control in Asthma-E3N, a case-control study on asthma nested in the E3N cohort. Including 2258 women with current asthma, the analysis showed that women with medium and low educational level had more often uncontrolled asthma than women with high educational level. Women living in deprived neighborhood had more often uncontrolled asthma independently of their educational level.

This master‘s thesis deals with computational modelling of human vocal folds in phonation position using finite element method. There are described larynx anatomy, voice generation theories and overview of so far published computational models of vocal folds. Next part of the paper deals with a redesign of vocal folds and soft tissues‘ geometry, creation of finite element mesh and implementation of active stress in thyroarytenoid muscle. The problem was solved using Ansys 19.2 software. Computation of stress and deformation of soft tissues in phonation position has been made for 7 variations with different combination of active cartilages and muscles. Lastly, there was evaluated an effect of different cartilages and active muscle stress to final stress and deformation of soft tissues of vocal folds.

This thesis deals with the solar radiation, which is one of the potential sources of the renewable energy. The purpose of this thesis is to apprise of the methods how to calculate the Sun’s position as well as to learn the basics of software VEE Pro 8.0. Also, create a program simulating the location of the Sun during the day according to the variable latitudes and days and consequently to calculate the Sun irradiation passing through the atmosphere onto the tilted solar module, considering the respective tilt. Theoretical part describes the transmition of the energy between Sun and Earth, global irradiation and its components, which are generated by beams passing through the atmosphere and incident on a solar module. Practical part is dedicated to a program creation according the theoretical basis and it is used for further simulation of the Sun’s position. Another program simulates the total daily and annual irradiation including its components onto the tilted solar module, considering the respective tilt.

This thesis examines the relation between ascribed factors and the distribution of social capital among young adults. Information about the type of ties used in access to social capital is utilized to provide an understanding of the social contexts and mechanisms that play a role in the creation of social capital. The study measures social capital with a position generator methodology and utilizes the first wave of the Swedish LIFINCON survey, which is a study of 19 year olds of Iranian, Yugoslavian and Swedish origin. The results show that having socioeconomically advantaged parents and living in a large city region is associated with higher levels of social capital. Gender differences are found in the accessed range of social capital as women more often reached positions with the lowest prestige value. Background in Iran or Yugoslavia has a positive effect on social capital and parents’ class position in the country of origin is important for their children’ social capital. It is argued that social closure and social distance can explain why social background is important in determining access to high prestige social capital and that the composition of an individual network is affected by the average resources in a “group” or region.

The aim of this diploma thesis is to evaluate the direct dependence of the match outcome on the success of players in individual positions, moreover, the thesis also examines whether it is possible for an individual's performance to influence the outcome. This will show which playing positions and their activities are most important for the development and outcome of the match. Furthermore, this work will compare the results of male and female category and explain the difference in these categories. For the practical part, a statistical method has been created, by which the necessary data were gathered during the matches of Dobřichovice women's and men's first league teams. The collected data for each category were then evaluated, the categories were compared with each other and conclusions were drawn. The acquired data from this diploma thesis could subsequently help with creating training units in the training process. By composing this thesis, the author has verified a multitude of information gained through her volleyball practice. Key words: volleyball, player, position, success rate

Utgångspunkten för denna studie är att sociokulturell bakgrund och geografisk position påverkar aspirationer för vidareutbildning hos ungdomar i glesbygden. I denna studie undersöks aspirationer ur ett arbetslivsperspektiv; vilka aspirationer till vidareutbildning unga vuxna i ett litet samhälle har samt vilka aspekter av livet som aktualiseras i deras resonemang. Denna studie syftar till att bidra med en förståelse för hur unga gruvarbetare ser på vidareutbildning inom karriären, samt hur sociokulturell bakgrund och geografisk position kommer till uttryck i deras aspirationer. Sju semistrukturerade intervjuer har genomförts med unga gruvarbetare som bor och arbetar i ett gruvsamhälle. Det empiriska materialet analyseras utifrån Bourdieus kapitalteori som innefattar begreppen habitus, tillgångar och fält. Genom att undersöka individernas habitus och symboliska tillgångar, hur de förhåller sig till gruvarbetets fält, vad de tycker är värt att investera i, samt vilken mening de lägger i kompetensutveckling, kunde slutsatser dras om deras aspirationer i förhållande till social bakgrund och geografisk position. Resultatet visar att majoriteten av de unga gruvarbetarna upplever att det inte finns utvecklingspotential i gruvan. Geografiska, ekonomiska och sociala faktorer påverkar både gruvarbetarnas upplevda möjlighet till utveckling samt viljan till kompetensutveckling. De har investerat i platsspecifika tillgångar, såsom socialt och ekonomiskt kapital i form av familj, kollegor och en bra lön, vilket binder dem till gruvsamhället. De som vill utvecklas i karriären ser sig flytta från samhället eller byta yrke och bransch. För dem hör inte utbildningsaspirationer ihop med gruvan.

Background: To throw light on the under-researched association between socioeconomic position (SEP) and health in Cuba, this study examined SEP gradients in health and their underlying mechanisms among urban Cuban adults aged 18-65. Methods: By applying linear regressions to data from the 2010 National Survey on Risk Factors and Chronic Diseases, the analysis explored the SEP-health gradient along three SEP dimensions-education, occupation, and skin colour-using ten health measures: Self-reported health (SRH), general and abdominal obesity, hypertension, high glucose, high cholesterol, high triglycerides, low high-density lipoprotein cholesterol, metabolic syndrome, and cumulative risk factors. Regressions also included behaviours and health-related risk perceptions (tobacco and alcohol consumption, diet, physical activity, and risk-related behaviours). It thus investigated the SEP-health gradient and its underlying mechanisms via both behaviours and health-related risk perceptions. Results: Once controlling for gender, age, marital status, region and provincial dummies, the analysis detected educational gradients in SRH (estimated coefficient [95% CI]: Middle-level education = 3.535 [1.329, 5.741], p < 0.01; high-level education = 5.249 [3.050, 7.448], p < 0.01) that are partially explainable by both health-affecting behaviours (tobacco and alcohol consumption, diet, physical and sedentary activity) and risk perceptions. Using objective measures of health, however, it found no SEP-health gradients other than hypertension among people identified as having Black skin color (adjusted for demographic variables, 0.060 [0.018, 0.101], p < 0.01) and high cholesterol among those identified as having Mulatto or Mestizo skin color (adjusted for demographic variables,-0.066 [-0.098,-0.033], p < 0.01). Conclusions: In terms of objective health measures, the study provides minimal evidence for an SEP-health gradient in Cuba, results primarily attributable to the country's universal healthcare system-which offers full coverage and access and affordable medications- A nd its highly developed education system.

The aim of this systematic review was to synthesize the evidence for changes for proprioceptive variables consisting of movement and position sense in participants with glenohumeral musculoskeletal disorders. Five databases were searched until 13th August 2013. Methodological quality was assessed and meta-analyses were performed for active and passive joint reposition sense (AJPS and PJPS) and movement sense, determined with threshold to detection of passive motion (TTDPM). The search yielded 17 studies, four of which were classified as having high methodological quality, seven as moderate and six as low quality. For participants with post-traumatic glenohumeral instability, pooled findings indicate moderate evidence for higher TTDPM for involved shoulders compared to control groups and the contralateral uninvolved side, indicating decreased movement sense. For AJPS and PJPS there was moderate to limited evidence for significant increased errors for involved compared to uninvovled shoulders, but not when compared to the control groups. Limited evidence was found for decreased AJPS acuity for patients with chronic rotator cuff pain and for patients with unspecified shoulder pain compared to healthy controls. Movement sense is most likely to be impaired after shoulder injury involving post-traumatic instability when compared to the contralateral shoulder and to controls, while deficits for AJPS and PJPS are more likely to be evident compared to the contralateral shoulder in participants with glenohumeral musculoskeletal disorders.

In this study, I hope to challenge the absolute belief in academia, which assumes that the perception of reality or visualities; in terms of culture, nature, truth and so on, by definition should be understood according to the Western philosophical character and genealogy as developed from a positivist paradigm. It seems to me, that the dominant methodological frameworks as I know them now, tacitly follow this scientific, quantitative, material, mechanical, positivist paradigm that draws from Western philosophical development and positions, pervasively held as the only basis for knowledge production. In turn, this philosophical position delegitimises any other epistemologies or methodological frameworks from elsewhere. In many cases, the methods of teaching and assessing subscribe, impose and perpetuate these same protocols as the only recognised epistemological and methodological approaches for critical inquiry inside tertiary educational institutions. By far, fine art as a discipline has inherited this epistemological position. To define this field in the context of decolonisation (meaning the undoing of colonisation), it requires us to look beyond disciplinary knowledge. This research is primarily an epistemological critique; and does not simply seek to “Africanise” the study of art, but to condemn the pervasive institutionalised cultural dominance. To frame my discourse, I have adopted an anti-colonial perspective, and a qualitative method to help define this phenomenon through a wide range of techniques. These include grounded theory; propositional logic; case study, narrative inquiry and auto-ethnography as possible tool for collecting, coding and analysing of data.